So, I tested the clutch and it seems good. It loudly engages. I put the ohm meter on it, and got 4 ohms, hopefully that's good. The belt is gone, so that's the problem. The spring for the tension/idler pulley fell off, and I can't tell where it needs to go. I found a diagram, so I feel like I know how to run the belt, but there's no obvious place to hook the spring, other than a hole on the arm that carries the pulley. I need somewhere to attach the other end... I have a belt on order, it may be more apparent with a belt. I tried running 550 cord, just to align the pulley, but don't see where to hook the spring. The other person who works on it runs a lawn business, so he fixes a bunch of stuff. We looked at that tension spring together a few months ago without finding the answer. He did hook it up somehow, but here we are a few months later with a missing belt and the spring falling off.
Any ideas, or pointers to pictures? I have searched some, but haven't found much yet, other than a diagram of how the belt runs. I did unplug and reconnect the switch, and the connection seemed good. I also unplugged the connector at the clutch end and it looked fine. Thanks for the input everyone.